Your photo editing app on your tablet should have a means to resize your pictures to 640 pixels on the longest side. Resize the picture and it should load. If not try putting your picture on photobucket and then follow the instructions given in this link
viewtopic.php?f=7&t=16001 If you still can't get them to load, let me know and I will PM you with my e mail address and help you by posting them for you.